I 100% believe that it is actually impossible to convince a childfree by choice person that it's possible to truly enjoy kids. The scenario here sounds awful to (childless) me. You have to go to the beach, which has weather.
I am 100% in favor of people who don't want kids not having kids, but watching your kids play on the beach on a day where all your responsibilities are asleep is a peak human experience of a type you will struggle to get elsewhere.